Logic Masters Deutschland e.V.

My belated Xmas present (made for the CTC December Puzzle prompt) is a Christmas tree, depicted in green with a yellow star on top and decorated with blue Schrödinger lights. The electric cord for them to plug in is represented by the Between clue and the "=" outside the grid.

Normal Sudoku rules apply. In addition:

* Killer cages - the number (not always given) in the corner is the sum of the digits in the cage. Digits may not repeat within a cage
* Between clue - numbers along the line must be between the numbers in the circled cells.
* Each blue Schrödinger light represents a Kropki dot relationship (a difference of 1 or a ratio of 1:2) between the adjoining cells and their killer cages. The cells and their cages do not have to have the same relationship.
* All Schrödinger lights are given (negative constraint applies). So, if two cages are joined by Schrödinger lights, their adjoining cells can only be in a Kropki relationship if also joined by a Schrödinger light.

Click the link to play on F-Puzzles